Thomas Sowell explains how the concept of social justice (or cosmic justice) is wholly incompatible with traditional justice (everyone treated the same) and how the proponents of the philosophy must conflate the two to sell the notion.
Here is a PDF of the original speech in New Zealand, that he mentioned finishing his thoughts in a book form.
The Ethnic Flaw – Part 1 (Affirmative Action Debunked, Race & Racism, Social Justice)
The Ethnic Flaw -Part 2 (Affirmative Action Debunked, Race & Racism, Social Justice)